| Team | Tm | Tier | Game |
|---|---|---|---|
| Brooklyn Robins | LAN | 0.94 | 193109100_LAN_CIN |
| St. Louis Cardinals | SLN | 0.55 | 193109110_ATL_SLN |
| Philadelphia Athletics | OAK | 0.46 | 193109100_BAL_OAK |
| Washington Senators | MIN | 0.25 | 193109100_CLE_MIN |
| New York Yankees | NYA | 0.1 | 193109110_CHA_NYA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| St. Louis Browns | BAL | -9.18 | 193109100_BAL_OAK |
| Boston Red Sox | BOS | -1.38 | 193109100_DET_BOS |
| Cincinnati Reds | CIN | -1.12 | 193109110_LAN_CIN |
| Philadelphia Phillies | PHI | -0.27 | 193109110_PHI_CHN |
| Pittsburgh Pirates | PIT | -0.03 | 193109090_LAN_PIT |
Based on accumulated WAA for this season up to 1931-09-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +044+ | 3.46 | Glenn Spencer | 161.7 | PIT |
| +058+ | 2.61 | Bump Hadley | 155.3 | MIN |
| +082+ | 1.91 | Jack Quinn | 61.3 | LAN |
| +095+ | 1.64 | Red Faber | 170 | CHA |
| +103+ | 1.46 | Jim Lindsey | 65.7 | SLN |
| +105+ | 1.4 | Eddie Rommel | 98 | OAK |
| XXXXX | 1 | Cy Moore | 49.7 | LAN |
| XXXXX | 0.54 | Sloppy Thurston | 134.3 | LAN |
| XXXXX | 0.45 | Hank McDonald | 68.3 | OAK |
| XXXXX | 0.37 | Sarge Connally | 68.7 | CLE |
| XXXXX | 0.32 | Jack Berly | 102 | SFN |
| XXXXX | 0.13 | Johnny Welch | 16.7 | CHN |
| XXXXX | 0.13 | Bob Cooney | 14.3 | BAL |
| XXXXX | 0.11 | Oral Hildebrand | 3.3 | CLE |
| XXXXX | 0.08 | Bobby Reeves | 7.3 | BOS |
| XXXXX | -0.46 | Jim Peterson | 4 | OAK |
| XXXXX | -0.46 | Ed Wells | 115.3 | NYA |
| XXXXX | -0.51 | George Pipgras | 112.7 | NYA |
| XXXXX | -0.56 | Bill Sherdel | 128.3 | ATL |
| XXXXX | -0.62 | Hal Haid | 50.7 | ATL |
| XXXXX | -0.78 | Joe Heving | 42.3 | SFN |
| XXXXX | -0.8 | Benny Frey | 123.7 | CIN |
| XXXXX | -0.87 | Bob Weiland | 54.3 | CHA |
| XXXXX | -0.99 | Clyde Day | 53 | LAN |
| XXXXX | -1.08 | Chad Kimsey | 88.7 | BAL |
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